0 votes 0 votes If $\frac{a}{a+b} = \frac{b}{c+a} = \frac{c}{a+b} = r$, then $r$ cannot take any value except $1/2$ $-1$ $1/2$ or $-1$ -$1/2$ or $-1$ Quantitative Aptitude cat2004 quantitative-aptitude algebra + – go_editor asked Jan 12, 2016 • edited Mar 30, 2022 by Lakshman Bhaiya go_editor 13.9k points 753 views answer comment Share See all 0 reply Please log in or register to add a comment.
1 votes 1 votes Option 3 is Ans (By Substitution Method) Take a=b=c=1 Now put in equation ;We will get r=1/2 (Option 4 cancelled) Now take a=-3,b=6,c=-3 We get r=-1 So option(3) is ans.. Rajesh Pradhan answered Jun 22, 2016 Rajesh Pradhan 158 points comment Share See all 0 reply Please log in or register to add a comment.